Clinical Performance of 3D Printed Resin Composite Posterior Fixed Dental Prosthesis: A Permanent Solution?

IF 1.1 Q3 DENTISTRY, ORAL SURGERY & MEDICINE European Journal of Prosthodontics and Restorative Dentistry Pub Date : 2024-11-11 DOI:10.1922/EJPRD_2796Hobbi10

P Hobbi, T M Ordueri, F Öztürk-Bozkurt, T Toz-Akalιn, M M Ateş, M Özcan

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Abstract

Objectives: This clinical trial aimed to evaluate the clinical outcomes of 3D-printed resin composite posterior fixed dental prosthesis (FDP) restorations.

Materials and methods: Between October 2020 and August 2022, 49 patients (33 females, 16 males, aged 19-60) received 68 3-unit 3D-printed resin composite posterior FDPs (ELS Even Stronger, Saremco, Switzerland). Follow-ups were conducted at baseline (2 weeks) by independent observers using modified FDI criteria, assessing anatomical form, marginal adaptation, surface roughness, color match, fracture, retention, and patient feedback. Fifty FDPs completed a 1-year follow-up, and 18 reached 2 years.

Results: The mean observation period was 14.15 months. Failures were categorized as mechanical or biological, with 19 FDPs failing: 14 mechanical (12 cohesive fractures) and 5 biological (3 needing endodontic treatment, 2 periodontal issues). Two FDPs were recemented. Three FDPs showed surface luster loss, color mismatches, and staining. The survival rate based on mechanical failures was 69.5%, dropping to 61.0% when including biological complications.

Conclusions: After 2 years, 3D-printed resin composite FDPs demonstrated acceptable performance, with most failures due to fractures in the connector region, suggesting the need for design revisions.

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三维打印树脂复合材料后牙固定义齿的临床表现：永久性解决方案？

目的：本临床试验旨在评估三维打印树脂复合材料后牙固定修复体（FDP）的临床效果：该临床试验旨在评估3D打印树脂复合材料后牙固定义齿（FDP）修复体的临床效果：2020年10月至2022年8月期间，49名患者（33名女性，16名男性，年龄19-60岁）接受了68颗3单元3D打印树脂复合材料后牙固定修复体（ELS Even Stronger，瑞士Saremco公司）。独立观察员采用修改后的 FDI 标准对基线（2 周）进行随访，评估解剖形态、边缘适应性、表面粗糙度、颜色匹配、断裂、固位和患者反馈。50 个 FDP 完成了为期 1 年的随访，18 个完成了为期 2 年的随访：平均观察期为 14.15 个月。失败分为机械性和生物性两种，共有 19 个 FDP 失败：机械性失败 14 例（12 例粘连性骨折），生物性失败 5 例（3 例需要牙髓治疗，2 例牙周问题）。两颗 FDP 被接骨。三个 FDP 表面失去光泽、颜色不匹配和染色。机械故障的存活率为 69.5%，如果包括生物并发症，则存活率降至 61.0%：结论：2年后，3D打印树脂复合材料FDP表现出了可接受的性能，大多数故障都是由于连接区域的断裂造成的，这表明需要对设计进行修改。

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来源期刊

European Journal of Prosthodontics and Restorative Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

2.30

自引率

7.70%

发文量

期刊介绍： The European Journal of Prosthodontics and Restorative Dentistry is published quarterly and includes clinical and research articles in subjects such as prosthodontics, operative dentistry, implantology, endodontics, periodontics and dental materials.